Struct icu_provider::struct_provider::StructProvider

pub struct StructProvider<'d, T> {
    pub key: ResourceKey,
    pub data: &'d T,
}

A data provider that unconditionally returns references to borrowed data.

Examples

use icu_provider::prelude::*;
use icu_provider::struct_provider::StructProvider;
use std::borrow::Cow;
use std::default::Default;

#[derive(Clone, Debug, PartialEq)]
struct SampleDataStruct<'s> {
    value: &'s str,
}

let local_data = SampleDataStruct {
    value: &"hello world".to_string(),
};

// A placeholder key to use to serve the data struct
const SAMPLE_KEY: ResourceKey = icu_provider::resource_key!(x, "xyz", "example", 1);

let provider = StructProvider {
    key: SAMPLE_KEY,
    data: &local_data,
};

let payload: Cow<SampleDataStruct> = provider.load_payload(&DataRequest::from(SAMPLE_KEY))
    .expect("Load should succeed")
    .payload.take()
    .expect("Data should be present");

assert_eq!(*payload, local_data);
assert!(matches!(payload, Cow::Borrowed(_)))

Fields

key: ResourceKey

data: &'d T

Trait Implementations

impl<'d, T> DataProvider<'d, T> for StructProvider<'d, T> where
    T: Clone + Debug + Sized + 'd, 

fn load_payload(&self, req: &DataRequest) -> Result<DataResponse<'d, T>, Error>

Query the provider for data, returning the result.